How to Replace the Key Battery for the New Mercedes-Benz CLS500?

[McNoah]

Mercedes-Benz has had three generations of car keys in the past two decades. The key design is largely the same across models and series, and the battery replacement method is also similar. Below are the steps to replace the battery for the new Mercedes-Benz CLS500 key: 1. There is a button on the back. Press this button and slide the key cover forward. 2. The battery is located in the adjacent slot. 3. Open the slot and remove the old battery to replace it with a new one. 4. Reattach the key cover to complete the battery replacement. Below are the steps to replace the battery for Mercedes-Benz keys from 2006 to 2013: 1. First, flip open the rear flap of the key to remove the mechanical key. Insert the mechanical key into the flap slot to open the back cover. 2. Then, remove the old battery and replace it with a new one. 3. Close the back cover to complete the battery replacement. Below is the method to replace the battery for older Mercedes-Benz keys: 1. Flip open the rear flap of the key to remove the mechanical key. 2. Insert the mechanical key into the side slot of the key. 3. Press the internal gray button and push the rear end of the key upward. 4. When a gap appears, you can remove the mechanical key. 5. Take out the rear section to replace the battery. 6. After installing the new battery, reinsert the key holder to complete the replacement.

[OKai]

Replacing the battery for a Mercedes CLS500 key is actually quite simple. I've done it myself several times. First, locate the small latch on the side of the key and gently pry it open with a fingernail or small coin, being careful not to scratch the casing. Then you'll see the coin battery compartment inside. Check the model number on the old battery, usually CR2032 or CR2025. Buy an identical new battery at a convenience store, making sure not to get the wrong size. When removing the old battery, use your finger to pop it out from the edge. When installing the new battery, ensure the side with the plus sign faces upward. Finally, align and press the key cover back into place until you hear a click. The whole process takes about five to six minutes. Remember to test the lock/unlock functions afterward. Avoid storing the key near your phone regularly, as electromagnetic interference can drain the battery faster.